MOCKUP - Remove “Archival Collections at UGA” Header

Description: @smkiewel Can you make us a mockup of the following? We're not sure if we want to do it, but we want to see how it looks on the results page and collection page. Thanks!

Remove the “Archival Collections at UGA” header. Use the “Repositories” link as the link provided on the homepage with a “Browse by Repository” button as detailed in the Home Page issue.

Documentation (More Info): https://docs.google.com/document/d/1C2QUMVat_NMz13bLS6ck9MZWIIVa-utOVsXSLUm6oB0/edit